Abstract Title:

The effect of kiwifruit consumption on blood pressure in subjects with moderately elevated blood pressure: a randomized, controlled study.

Abstract Source:

Blood Press. 2015 Feb ;24(1):48-54. Epub 2014 Dec 8. PMID: 25483553

Abstract Author(s):

Mette Svendsen, Serena Tonstad, Eli Heggen, Terje R Pedersen, Ingebjørg Seljeflot, Siv K Bøhn, Nasser E Bastani, Rune Blomhoff, Ingar M Holme, Tor O Klemsdal

Article Affiliation:

Mette Svendsen


BACKGROUND AND AIMS: Kiwifruit contains bioactive substances that may lower blood pressure (BP) and improve endothelial function. We examined the effects of adding kiwifruit to the usual diet on 24-h ambulatory BP, office BP and endothelial function.

METHODS: In a parallel-groups study, 118 subjects with high normal BP or stage 1 hypertension (systolic BP 130-159 mmHg and/or diastolic BP 85-99 mmHg) were randomized to intake of three kiwifruits (intervention) or one apple (control) a day for 8 weeks. Office and 24-h ambulatory BP was measured along with biomarkers of endothelial function including metabolites of nitric oxide (NO) formation and finger photo-plethysmography.

RESULTS: At randomization, mean 24-h ambulatory systolic/diastolic BP was 133± 13/82 ± 9 mmHg (n = 106). After 8 weeks, BP was lower in the group assigned to kiwifruit versus apple intake (between group difference, - 3.6 mmHg [95% CI - 6.5 to - 0.7], p = 0.017 and - 1.9 mmHg [95% CI - 3.6 to - 0.3]; p = 0.040, for systolic and diastolic BP, respectively). Changes in officeBP and endothelial function did not differ between the groups.

CONCLUSIONS: Among men and women with moderately elevated BP, intake of three kiwifruits was associated with lower systolic and diastolic 24-h BP compared with one apple a day. The effect may be regulated by mechanisms other than improvement of endothelial function.

Study Type : Human Study

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